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 Thick Film Resistor Networks
R Series
(Single-in-Line, Low Profile )
Feature
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Wide resistance range: 2291 to 1M (1 O - 3.3 M available)
Miniature package with maximum sealed heights 0.2"(5.08mm)
Highly stable thick film products
Products protected by tough epoxy conformal coating
Reduces total assembly cost
Mixed value resistances available
PART NUMBERING SYSTEM
R
A
09
103
G
Meritek Series
Circuit Configurations
Element No.
2 – 20
Resistance Value
The first two digits are significant figures
Of resistance value and the third denotes the number of zeros following
CODE
331
472
223
104
Value
330
4.7K
22K
100K
Resistance Tolerance
CODE
Tolerance
F
± 1%
G
± 2%
J
± 5%
Construction and Dimension Rev. 7
R Series
Thick Film Resistor Networks
(Single-in-Line, Low Profile )
Item
Requirement
Test Methods
Resistance to soldering heat
∆R ≤ ± (0.5% + 0.05Ω)
With 350±5ºC , for 3 seconds
Solderability
Exterior
Over 95% of termination must be
covered with new solder.
∆R ≤ ± (0.5% + 0.05Ω)
No mechanical damage.
No mechanical defect.
After immersing flus, dip in the 260ºC
Max. solder bath for 3±0.5 sec.
Tensile: 1Kg for 30 Sec.
Bending: 500g for 2 times
Visual
Size
Within specification
Calipers
Terminal Strength (Tensile Strength)
Mechanical Characteristics Electrical Characteristics Item
Requirement
Test Methods
Temperature Coefficient (ppm / °C)
R<50Ω , ±250 PPM/ºC
50Ω≤R<2.2MΩ , ±100PPM/ºC
R≥2.2MΩ , ±250PPM/ºC
Short-Time Overload
∆R ≤ ± (0.5% + 0.05Ω)
TCR (PPM/°C)= ோଵ X ்ଶି்ଵ
T1= 25ºC
T2= Test Temperature (-55°C ~ +125ºC)
R1: Resistance at Temp. T1
R2: Resistance at Temp. T2
2.5X Rated Voltage for 5 Sec. (200V max.)
Measure resistance after 30 minutes.
ோଶ ିோଵ
ଵ
Rev. 7
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